Wrench.



P. J. JOHNSON.

WRENCH.

' APPLICATION FILED MAY 15, 1911.

1,012,646. Patented Dec. 26,1911.

VVITNESSEs 'fl- YEEIQ 'WY 1M 7 1 ATTORNEY ITED; STATES PETER J. JOHNSON, OF-SHE-LLEY, IDAHO.

WRENCH.

Application filed May 15,

Specification of Letters Patent.

Patented Dec. 26, 1911.

1911. Serial No. 627,193.

To all whom it may concern:

Be it known that I, PETER J JOHNSON, a citizen of the United States, residing at Shelley, in the county of Binghain and State of Idaho, have invented new and useful Improvements in Wrenches, of which. the following is a specification.

My invention relates to the class of wrenches, and has for its object the production of a device which will be simple and inexpensive to manufacture, and is so constructed as to assure its durability.

Another object of my device is to provide means whereby packing nuts or the like may be loosened or tightened to a greater advantage.

With the foregoing and other objects in view, my invention consists in such details of construction and in the arrangement and combination of parts as will be hereinafter more fully described and specifically pointed out in the appended claims.

In describing my invention in detail reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views and irr which Figure 1 is a plan view of my device, the pawl being shown reversed and in dotted lines. Fig. 2 is a side elevation. Fig. 3 is a detail view, (parts shown in section) of the operation of the jaw members.

In carrying my invention into practice I provide a suitable handle 1 having a toothed wheel 2 thereon. Carried upon the handle 1 and intermediate the ends thereof is a pin 3 for the purpose as will hereinafter be described. Fastened to the handle 1, by any suitable means such for instance as shown at 1 is a member 5 having the 'eXt-ensions 6 and 7, which act as pawls and seri e to engage the teeth 8 of the wheel 2. Secured to the pin 3 or any other adaptable means, and also to the end 9 of the member 5 is a spring 10, it is to be understood that any other elastic means may be substituted. The spring 1.0 as is obvious will control the pawls 6 and 7 as my wrench is operated.

Formed in the handle 1 is an aperture 11 adapted to receive a sleeve 12, which is formed upon a polygonal shaped member 13, said member 13 adapted to (when occasion requires) be inserted within a packing nut or any member which is adapted to be operated from the inside, to rotate the same. Fast upon the sleeve 12 is the toothed wheel 2, whereby said wheel can be moved independent of the handle. I also provide a jaw member 1 1 having an aperture 15 formed therein to be inserted overthe shank 16 of a second jaw member 17, which is fast to the wheel 2. A second aperture 18 is formed in the jaw 11 for the reception-of one end of a leaf spring. The purpose of the spring will be hereinafter described.

Formed upon the shank 16 of the jaw 17, are the teeth 19 which are adapted to engage one side of the aperture 15. The aperture 15 also has one side shaped so as to snugly receive one of the teeth 19, as shown at 19 Carried by the shank 16 is a key member 20. Having one end seated in the aperture 18, and extending through the aperture 15 and then seated on the other side thereof is a leaf spring 21. The spring 21 is adapted to press the shank 16 into engagement with the side 19 of the aperture 15, whereby said jaw 14 may be adjusted to the size of the member to be engaged.

It now being desired to operate my wrench in the preferred way the jaws 14 and 17 are inserted over a nut or the like and are adjusted to the size thereof by pressing the end of the shank 16 outwardly against the tension of the spring 21, whereby the shank is pushed out of engagement with the portion 19 and thejaw 14 is free to slide upon said shank. The handle for instance is then pushed to the right an arms length. It will be seen that when doing so the pawls engage the toothed wheel and keep the same locked with the handle, but when the handle is pulled back the pawls slip over the teeth of the toothed wheel and the jaws which are then in engagement with a nut are not moved. My wrench is operated in the same manner when the member 13 is inserted into a packing nut or the like.

It can be readily seen that my device is very simple and can be handled to a great advantage.

From the'foregoing it is thought that the advantages and novel features of my improved wrench will be readily appreciated. I desire it to be understood that slight changes in the construction and in the arrangement and combination of parts may be resorted to without departing from the spirit of my invention, provided such changes fall within the scope of the subjoined claims.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a wrench, a, handle, an aperture in said handle, a sleeve extending through said aperture, a ratchet wheel on said sleeve, a jaw on said wheel, an offset portion on said jaw, a second jaw slidable on said offset portion and means for operating said wheel.

2. In a wrench, a handle, pawls mounted on said handle, means to operate said pawls, an aperture in said handle, a polygonal shaped member, a sleeve carried by said member adapted to fit in said aperture, a toothed wheel adapted to be seated upon said handle and be secured to said sleeve, a

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,.

jaw on said wheel, said jaw having an oifset portion, a second jaw adapted to operate on said offset portion and means for operating said last named jaw.

3. In a wrench, a rachet thereon, a jaw secured to said ratchet, an oiiset portion on said jaw, teeth on said ofl set portion, a key on said ofiset portion, a second jaw, an aperture in said second jaw, said second jaw adapted to be inserted over said offset portion and a spring keeping said second jaw in engagement with said ofiset portion.

PETER J. JOHNSON.

Witnesses:

M. E. WILKINSON, M. L. HARE.

Washington, I). O. 

